Device for making oil-wells flow



(No Model.)

J. W. WAITS.

DEVICE EOE MAKING oIL WELLS ELoW.

Patentedot. 4, 1887.

. 5mm/wm w Sri:

NA PETERS. Pmm-Limnnplwr. wmmgwn. D. c.

UNITED STATES PATENT OEE-ICE.

JOHN WILLIAM WAITS, OF ROUSEVILLE, PENNSYLVANIA.

DEV'ICE FOR MAKING OIL-WELLS FLOW.

SPECIFICATION forming part of Letters Patent No. 371,006, dated October4, 1887.

Application filed December 2, 1886. Serial No. 220,498. (No model.)

To all whom, it may concern.-

Be it known that I, JOHN WILLIAM WAITs, a citizen of the United States,and a resident of Itouseville, county of Venango, State of Pennsylvania,have invented new and useful Improvements in Devices for MakingOil-W'ells Flow, of which the following is a full and eX- actdescription, reference being had to the accompanying drawings, makingpart of this specification.

This invention relates to improvements in devices for making oil-wellsflow; and it consists in the construction and arrangement of the partswhereby the deposit of the well is confined in a pure condition and soas to be easily extracted, the pressure is taken off the sides of thewell, the amount of oil to be drawn off can be regulated as desired, thegases of the well can be utilized in the operation of the same, thegases lof adjoining well or reservoir may be utilized to aid the gasesof the well in the operation of the same, and whereby the use of apacker is dispensed with.

In the drawings, Figure l is a sectional view of an oil-well providedwith this invention. Fig. 2 isa view of a modification of the invention.Fig. 3 shows the disposition of the pipes when a force-pump is broughtinto use.

In the drawings, A designatesacasing which is placed over the mouth ofthe well. The space between the sides of the well and the casing ispacked,so that water from the surface of the earth cannot get into thewell nor gas escape therefrom. From the side of the head of the saidcasing emanates a pipe, B. This pipe is bent back, so as to makeconnection with a large tube, C, and is provided with a stop-cock, B,between the said connections with the casing A and tube C. The tube Gispassed through a perforation in the head of the casing A, and the j ointis packed to prevent escape of gas. The said tube G extends from abovethe junction with the pipe B down into the well to the pocket D, withwhich it makes a gas-tight junction. The pocket D is constructed largerthan the tube C, and is placed at the bottoni of thc well. It isprovided at the bottom with a valve, E, opening inwardly. This valve isplaced in a small chamber in the bottom of the said pocket,substantially as shown, so as not to interfere with the adjusting of thetube F. The said tube F is smaller than the tube C, and is set in thesame, through a perforation in the head which is packed to prevent thevescape of the gas. This tube is provided outside the tube C with astop-cock, F. The said tube can be lowered or raised in the tube C, asdesired, and thus regulate the amount of oil to be drawn out ofthepocket D by raising the bottom of the tube in the said pocket.

In the modification shown in Fig. 2 the pipe G is connected tothe pipeB, and leads to an adjoining well or reservoir of gas. It is providedwith a stop-cock, G.

In the operation of this invention the oil deposited inthe well gainsentrance into the pocket D by way of the valve E. If the cock B isclosed, the accumulation of gas in the well will force the oil into thepocket above the level in tl'ie well and above the end of the tube F.The cock B is now openedA and the gas allowed to escape from the wellinto the tube C by way of the pipe B. 4Ill/'hen this is done, the gasexpands and forces down upon the oil in the pocket D, driving it up thetube F. This it will continue to do so long as the oil in the pocket Dis above the end of the tube F. The flow of the oil from the tube F isnow controlled by the cock F, by means of which it can be run offrapidly or slowly, as the pressure on the well may require. When thedesired amount of oil has been drawn, the cock B is closed, thusrelieving the pressure of the gas and oil upon the valve E in thepocket. Then this cock B is closed, and the expansive force of the gasis exerted upon the oil outside, which is forced into the-.pocket by wayof the said valve E.

If the well being operated is so deep that the gas generated withinitself will not lift the oil to the surface, the cock G of the pipe Gisturned on and the gas from the reservoir, or an adjoining well,introduced into the well to aid the gas of the same. If it now provesneeessary, a force-pump is connected to the said pipe and the gas isforced down the tube C, as shown in Fig. 3 of the drawings.

The quantity of oil to remain in the pocket can be regulated by drawingthe tube F up, or lowering it, as the case may be.

That I claim is- In a device, such as described, for making oil-wellsiiow, the combination of a large tube IOS extending to or near thebottom of said well, said tubes, substantially as described, and a Iosaid tube attached to and opening into an enpipe connecting the saidcasing and large tube, larged casing or pocket situated at or nearsubstantially as set forth. the bottom of the well, said easing orpocket In testimony whereof I have hereunto set my 5 provided with aninwardly opening valve, hand this 18th day of November, A. D. 1886.

substantially as described, a small tube eX- JOHN WILLIAM VAITS.

tending to or near the bottom of said pocket Vitnesses:

and inolosed by said large tube, a casing olos- HUGH C. GRAHAM,

ing the mouth` of the Well and inclosing the M. BATES.

